89results about How to "More power consumption" patented technology

An ultra low power, low complexity, low collision, deterministic modulation method that also works as a massive medium access mechanism for communication systems is based on positioning data in a communication resource space, such as time and frequency, such that the position of a symbol in that space determines its value and its access to the medium. The number base of the symbol is determined by the size of the subset of the resource space it is positioning itself in and, thereby, a few sparsely located symbols can convey a large value, while the remainder of the space can be simultaneously and massively used by other sparsely resource using members of the network.

An efficient system and method for adaptive tile depth filter (ATDF) is disclosed. The key concept of this system and method is to consider more occlusion conditions in order to achieve a better performance of filter before the conventional Z test process in three dimensional graphics pipeline. Two occlusion criteria, Zmax and Zmin (depth range in a tile), are introduced first for occlusion and non-occlusion fragments in a tile. The points between Zmax and Zmin are in uncertain fragment which may need to go through the later Z test. Moreover, a new technique, coverage mask, can further filter the points in the uncertain fragment to a final uncertain fragment and non-occlusion fragment. Besides, the coverage mask can be used to efficiently decide which tile needs the further sub-tile depth filter.

An electronic device, includes sigma-delta modulation circuit to operate with a clock signal and having output circuitry to deliver a digital data signal. First circuitry delivers a radiofrequency transposition signal. A notch filter includes radiofrequency digital-to-analog conversion blocks, having first input circuitry coupled to the output circuitry. Second input circuitry receives the radiofrequency transposition signal. Second output circuitry delivers a radiofrequency analog signal. Digital delay circuitry is controlled by the clock signal and includes a delay block between the two first input circuits. The frequency of a notch of the notch filter is related to the value of the delay from the delay block. Summation circuitry sums the radiofrequency signals.

The object of the invention is to enable inhibiting power consumption in a power saving mode in an image scanner more. Separately from linear CCD that is an optical sensor mounted inside the body provided with an original table having a surface on which an original is put, senses reflected light from the original on which a beam emitted from a light source is incident on the surface and converts it to an electric signal, an external light sensor that detects external light incident on the body via the surface from the outside of the body and outputs a detection signal is provided in the body. A controller in the body releases a power saving mode based upon a detection signal value from the external light sensor. Besides, the controller stops the supply of power to a light source and the linear CCD in case the power saving mode is turned on.

A light-regulation membrane includes a surface structure having an anti-stain layer for surface cleanness, a hard coating layer for surface protection, and anti-reflective layer sandwiched between the anti-stain layer and the hard coating layer for reducing glare and ultra-violet; an adhesion layer for directly and repetitively adhering on transmissible plate even after peeled-off; two polymer compound layers sandwiched between the hard coating layer and the adhesion layer; and a PDLC (polymer dispersed liquid crystal) film sandwiched between the two polymer compound layers comprising two conducting layers and a liquid crystal layer sandwiched in-between the two conducting layers. The two conducting layers can be connected to an electric power source. So, the transparency of the light-regulation membrane can be regulated from opaque to clear or reversely while the transmittance of the PDLC film being adjusted by the power, and then any light source passing through the light-regulation membrane can be controlled.

The present disclosure relates to an optical transceiver for use in optical fiber communications and / or telecommunications systems and, more specifically, a low power consumption, long range pluggable transceiver. The transceiver generally comprises a photodiode with a transimpedance amplifier (PIN-TIA); an electro-absorption modulated laser (EML); an optical detector; and a directly modulated laser (DML) driving module connected between the PIN-TIA and EML laser configured to drive the EML laser. A low power-consumption DML driving module is utilized to drive the EML laser, so as to further reduce power consumption. An impedance matching circuit can be applied to modulate an electro-absorption (EA) modulator of the EML laser with maximum efficiency.

In order to avoid loss of data, computer systems are often connected to a UPS which provides power backup in case of an emergency shutdown resulting from a power failure. However, as UPS units are costly, they take up a lot of physical space and can provide power for a limited period of time, it would be advantageous to improve the efficiency of UPS devices and enable to utilize as much as possible of the UPS power in order to save data to a permanent storage before shutdown. There is provided a method and system for controlling the frequency of one or more processors in computer systems, responsive to an indication of a power failure, and thereby reduce its power consumption, so as to provide more power for writing write-pending data to a non-volatile data storage.

A power saving apparatus and power saving method thereof are disclosed. The apparatus includes a power controller and a power outlet, wherein the power controller has a first signal transmission interface, said first signal transmission signal interface is used to detect the operation mode of a host machine by a second signal transmission interface of said host machine, and outputs a controlling signal according to the operation mode of said host machine. The power socket communicates with the power controller and switches the power-on or off according to the control signal. When the host machine is operated in non-working mode, the power socket will turn off the power supplied to the peripheral electrical devices of the host machines, so as to save the power consumption of the peripheral electrical devices of the host machines.

Systems and methods are disclosed herein to use what is referred to as adaptive continuous tracking (ACT) to reduce the power consumption of GNSS receivers. In GNSS receivers, performance as measured by position accuracy is a function of the observation time of the satellites. A longer observation time translates into more reliable range measurements and demodulated data, and ultimately into better positioning accuracy of the receivers. However, a longer observation time also means more power consumption. ACT allows satellite observation time to be tuned to the desired positioning performance by dynamically adjusting the on time period of the receivers while maintaining a minimum performance metric. The performance metric may be formed from a combination of the estimated position error, the horizontal dilution of precision (HDOP), the data collection state, and the receiver operating environment as characterized by the carrier to noise ratio (CN0). ACT cyclically switches on / off the radio frequency (RF) front-end and also cyclically enables / disables the baseband hardware of the receivers to reduce power consumption while allowing the receivers to meet the minimum performance metric and ensuring continuous satellite tracking, continuous positioning fix operation, multiplexed GNSS operation, and continuous data collection.

A signal measurement method for a mobile communication apparatus supporting multiple transmission interfaces to perform communication transmission in a heterogeneous network environment, system and a recording medium thereof. Changes in the signal strength of an active network transmission interface are employed to adjust signal measurement periods of other non-active network transmission interfaces, thereby reducing the signal measurement frequency of these non-active network transmission interfaces. Moreover, as for the situation that a specific transmission interface periodically reports the signal measurement result to a remote network server, the signal measurement time during the report can also be reduced. By solving the power consumption problem caused by frequently activating the signal measurement of the mobile communication apparatus, the efficacies of saving power and improving the standby time and talk time can be achieved.

A hybrid-computing navigation system worn by a user includes a modified motion sensor group which includes 9-axis or 10-axis motion sensors that are built-in, and a host device configured for providing navigation information, in which the modified motion sensor group is worn on the user so that a moving direction of the user is the same as a heading direction calculated from the modified motion sensor group. The modified motion sensor group provides step counting and absolute orientation in yaw, roll and pitch using a sensor fusion technique. The navigation system further includes at least one wireless sensor at wifi hot spot to perform sensor fusion for obtaining an absolute position of an estimated position of the user. Sensor fusion combining with location map are used to perform location map matching and fingerprinting. A method of position estimation of a user using the navigation system is also disclosed.

An electronic doorbell can include an outer housing configurable to couple to a building. The doorbell can also include a camera coupled to the outer housing and a microphone coupled to the outer housing. The doorbell can also include a button coupled to the outer housing. The electronic doorbell can be configurable to wirelessly communicate with an appliance located within the building.

A method for controlling the operating frequency of a processor during video playback is disclosed. The method comprises extracting a pack of video data in which is embedded a plurality of data size information of a plurality of video data segments for playback. The plurality of data size information from the extracted pack of video data is read to determine the plurality of video data segment bitrates. The plurality of video segment bit rate is calculated from the plurality of data size information of the plurality of video data segments. The operating frequency of the processor is set according to the video data segment bitrate of each video data segment of the plurality of video data segments while playing the video data segment. As a result, the optimum processor operating frequency is utilized in order to provide the best quality of video playback while reducing the power consumption to a minimum.

An equalizer circuit includes a passive equalizer having an inductor connected in parallel to a signal interconnection line, the inductor being made up of a conductor portion formed on a side face of a through-hole of a circuit board.

Systems and methods are disclosed to use adaptive continuous tracking (ACT) to reduce the power consumption of GNSS receivers. In GNSS receivers, a longer observation time of the satellites translates into better positioning accuracy but also consumes more power. ACT allows satellite observation time to be tuned to the desired positioning performance by dynamically adjusting the on time period of the receivers while maintaining a minimum performance metric. The performance metric may be formed from a combination of the estimated position error, the horizontal dilution of precision (HDOP), the data collection state, and the receiver operating environment as characterized by the carrier to noise ratio (CN0). ACT cyclically switches on / off the radio frequency (RF) front-end and also cyclically enables / disables the baseband hardware of the receivers to reduce power consumption while allowing the receivers to meet the minimum performance metric and ensuring continuous satellite tracking, continuous positioning fix operation, multiplexed GNSS operation, and continuous data collection.

Disclosed is a hybrid ranging method comprising the steps of: transmitting from a first node an ultrasonic signal and a radio signal comprising at least one radio synchronization signal with a predetermined ratio; calculating, at a second node, a ultrasonic transmission time period between the receipt of the radio synchronization signal and the receipt of the ultrasonic signal; calculating, at the second node, an ultrasonic measured result between the first node and the second node by using the ultrasonic transmission time period; calculating, at the second node, the strength of the received radio signal, and obtaining a radio measured result between the first node and the second node from a reference database; calculating, at the second node, the smoothness of the ultrasonic measured result and the radio measured result; and determining at the second node, a final measured result according to the smoothness of the ultrasonic measured result and the radio measured result.

[Object] To reduce power consumption even more.[Solution] Provided is a communication control device including a communication necessity information acquisition unit configured to acquire communication necessity information indicating necessity to communicate with an external device, and a drive control unit configured to control drive of a first communication unit and a second communication unit on a basis of the acquired communication necessity information, the first communication unit communicating with the external device using a first communication mode, the second communication unit communicating with the external device using a second communication mode capable of transferring data at a rate higher than the first communication mode. The drive control unit controls a drive state of each of the first communication unit and the second communication unit to be set to one of an active state capable of communicating with the external device, a power-saving state having lower power consumption than the active state, and an inactive state being a power off state.

Control apparatus (1) for selectively applying a mains AC electrical supply (3) to an electrical appliance (4) in response to a remote signal received via a cellular telecommunications network comprises a housing (8) within which an electrical socket (14) for providing power to the appliance (4) is integrally formed. An electrical plug top (10) on a cable (12) extending from the housing (8) is provided for coupling to the mains supply (3). A switch circuit (15) under the control of a microcontroller (19) controls the mains supply (3) to the electrical socket (14). A communications circuit (20) which is adapted for communicating with a cellular telecommunications network receives SMS control messages, and the microcontroller (19) is responsive to the SMS control messages for in turn operating the switch circuit (15) to selectively switch the mains supply (3) to the appliance (4). A power supply circuit (28) independent of the mains supply (3) powers the control apparatus (1). A volt meter (22) monitors the presence of the mains supply (3) and an amp meter (24) monitors the current being drawn by the appliance (4). The microcontroller (19) is responsive to the volt meter (22) detecting the mains supply and the amp meter (24) detecting the absence of current being drawn by the appliance (4) when the switch circuit (15) is in the closed circuit state for determining the operational status of the appliance as faulty.

The present invention relates to the display field, and provides a LED display device. The LED display device comprises a data acquisition unit configured for acquiring image data; a data conversion unit configured for performing a data-conversion operation for the image data; and a LED display unit configured for displaying data converted by the data conversion unit. The LED display unit comprises a plurality of LED groups consisted of red LEDs, green LEDs, blue LEDs and white LEDs. The LED display device of the present invention employs the LEDs with four colors to compose a pixel, and employs the white LED to emit white light configured for replacing the white light formed by blending RGB light. Thus the LED display device reduces the power consumption and saves the energy.

Wireless communications apparatus is provided by which power consumption is much more reduced in a wireless system composed of a base station and wireless terminal stations. The apparatus installed in the base station includes a transmitter / receiver and a controller. The transmitter / receiver compares an RSSI value indicating the received wave strength of a received wireless signal with a preset value periodically at time intervals set in a timer for defining a time to start and stop the controller. When the RSSI value indicates that the received wave strength is higher than the preset value, the controller is made operative, and then the demodulated received data of the received signal are sent to the controller. The controller operates when the preset value is set in the transmitter / receiver, and analyzes the received data when the received wave strength has exceeded the preset value.

A power-saving display system without color filter is disclosed to include a backlight panel, a LED backlight set controlled to emit a first light source, a second light source, and / or a third light source to the backlight panel, a LCD panel disposed at a top side of said backlight panel, and a video signal controller controlled to output a first monochrome video image, a second monochrome video image, and / or a third monochrome video image to the LCD panel for synthesizing into a color video image for display on the LCD panel.

The present invention provides an inspection system with small increase in circuit area and capable of controlling increase in cost to be small. An inspection circuit intervenes between a first circuit and a second circuit. Further, the inspection circuit includes a signaling control portion and an inspection output portion. The signaling control portion controls signaling between the first circuit and the second circuit. Moreover, the inspection output portion outputs an output of the first circuit for inspection through the inspection circuit. In the present invention, the signaling control portion and the inspection output portion share a part of the circuit to realize their own function. Further, the first circuit, the second circuit and the inspection circuit are formed on the same substrate. The inspection circuit switches between the signaling control portion and the inspection output portion to use.

A clock distributor circuit is provided which works with power consumption reduced in semiconductor logic circuitry including clock synchronous circuits. The clock distributor circuit includes clock generation circuits generating gated clock signals in response to a clock enable signal to supply clock synchronous circuits with the generated clock signals. It is thus possible to reduce the power that would otherwise consumed by the toggling of the clock signal. A clock distribution method therefor is also provided.

A clock distributor circuit is provided which works with power consumption reduced in semiconductor logic circuitry including clock synchronous circuits. The clock distributor circuit includes clock generation circuits generating gated clock signals in response to a clock enable signal to supply clock synchronous circuits with the generated clock signals. It is thus possible to reduce the power that would otherwise consumed by the toggling of the clock signal. A clock distribution method therefore is also provided.

A system for creating a near-spherical point cloud of RGBD data includes one or more sensing units for providing depth data, each sensing unit having a stereo pair of sensors fitted with the wide-angle lens from which a one-dimensional line of pixels is read, and one or more lasers for illuminating the single line of pixels, the sensing units mounted on a spinning platform. The spinning platform is mounted on the base having a plurality of cameras mounted therein for providing 360-degree RGB data.